https://www.percona.com/blog/mysql-8-0-1-next-development-milestone/ Wed, 07 Aug 2019 13:18:25 +0000 hourly 1 https://wordpress.org/?v=6.5.2 https://www.percona.com/blog/mysql-8-0-1-next-development-milestone/#comment-10967546 Mon, 09 Jan 2017 17:32:04 +0000 https://www.percona.com/blog/?p=40200#comment-10967546 8.0: “Previously, indexes could be scanned in reverse order but at a performance penalty.” I assume the penalty instead of creating two index (one asc and one desc) when I run SELECT to datetimes in both direction (datetime NOW()). I cannot find the relevance of DESC index, when prior 8.0.1 I can use on index on both scan direction.
How much is the advantage of it is percent?

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